Why does it still show that there is an unread text message on my Samsung i9300 phone when there are no text messages?

Hello, we are sorry that the product has caused you any inconvenience!

According to your description, in order to restore your phone to normal use, please try to back up important data (phonebook, messages, pictures and ringtones) and restore it to factory settings. If the problem is not resolved, it is recommended that you bring your purchase invoice, repair card and mobile phone to the local Samsung service center, and an engineer will check the mobile phone for you.

Specific service center inquiry page: /support/location/supportServiceLocation.do?page=SERVICE.LOCATION&cid=cn_ppc_support_service_repairnet_120522

I hope the above answers can be helpful to you, and I wish you a happy life !